Home / 26,780.45-36,956.39-15,449.97

Finding the Fourth Proportional to 26,780.45, 36,956.39 and 15,449.97

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Solution

The fourth proportional to 26,780.45, 36,956.39 and 15,449.97 is: 21,320.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,780.45 : 36,956.39 = 15,449.97 : x
  2. Step 2: Convert to fraction form
    26,780.45/36,956.39 = 15,449.97/x
  3. Step 3: Cross multiply
    26,780.45x = 36,956.39 × 15,449.97
  4. Step 4: Simplify right side
    26,780.45x = 570,974,854.78
  5. Step 5: Solve for x
    x = 570,974,854.78/26,780.45
  6. Step 6: Final answer
    x = 21,320.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.